<!--SIF Implementation Specification 2.2-6 (March 17, 2008)-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" targetNamespace="http://www.sifinfo.org/infrastructure/2.x" xmlns:sif="http://www.sifinfo.org/infrastructure/2.x" elementFormDefault="qualified">
  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="imports/xml/xml.xsd" />
  <xs:complexType name="AssessmentType">
    <xs:sequence>
      <xs:element name="Name" type="xs:normalizedString">
        <xs:annotation>
          <xs:documentation>Name of the test.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="AssessmentId" minOccurs="0" nillable="true" type="xs:normalizedString">
        <xs:annotation>
          <xs:documentation>The state, local or publisher unique ID for the assessment.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="AssessmentPackageRefId" minOccurs="0" nillable="true" type="sif:IdRefType" />
      <xs:element name="AssessmentDescriptors" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="AssessmentDescriptor" minOccurs="0" maxOccurs="unbounded">
              <xs:simpleType>
                <xs:union>
                  <xs:simpleType>
                    <xs:restriction base="sif:NCES0067AssessmentTypeType" />
                  </xs:simpleType>
                  <xs:simpleType>
                    <xs:restriction base="xs:token">
                      <xs:enumeration value="Statewide" />
                      <xs:enumeration value="Formative" />
                      <xs:enumeration value="Local Summative" />
                      <xs:enumeration value="Diagnostic" />
                      <xs:enumeration value="Benchmark" />
                    </xs:restriction>
                  </xs:simpleType>
                </xs:union>
              </xs:simpleType>
            </xs:element>
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="SIF_Metadata" minOccurs="0" nillable="true" type="sif:SIF_MetadataType" />
      <xs:element name="SIF_ExtendedElements" minOccurs="0" nillable="true" type="sif:SIF_ExtendedElementsType" />
    </xs:sequence>
    <xs:attribute name="RefId" use="required" type="sif:RefIdType">
      <xs:annotation>
        <xs:documentation>The GUID that uniquely identifies this object.</xs:documentation>
      </xs:annotation>
    </xs:attribute>
  </xs:complexType>

  <xs:element name="Assessment" type="sif:AssessmentType" />

</xs:schema>